电力系统保护与控制Issue(7)：122-126,5.
N-2组合故障集的暂态功角稳定在线快速评估
Online fast transient angle stability assessment ofN-2 contingency set
摘要
Abstract
The total number ofN-2 faulty element combinations is huge in large scale power system. Transient angle stability analysis for allN-2 contingencies cannot be finished in given time required by online assessment. The index for contingency severity ranking is proposed to filter out slight cases. The index is calculated based on the stability margins and dynamic modes of theN-1 contingency and sensitivity analysis of another faulty element to generators in the critical cluster. Contingencies with larger index are selected for detailed transient angle stability assessment in order. If the transient angle stability margins of multiple sequential contingencies are greater than 0, subsequent contingencies can be judged stable. Real engineering applications in actual power grid have fully confirmed the validity and practicability of this method.关键词
暂态功角稳定/组合故障/故障筛选/参与因子/有功灵敏度Key words
transient angle stability/faulty element combination/contingency screening/participation factor/active power sensitivity分类
信息技术与安全科学引用本文复制引用
徐泰山,鲍颜红,杨莹,周海锋,徐伟,薛禹胜..N-2组合故障集的暂态功角稳定在线快速评估[J].电力系统保护与控制,2015,(7):122-126,5.基金项目
国家电网公司资助项目“大电网规划与运行控制技术深化研究重大专项(SGCC-MPLG003-2012)”及“输电线路在线动态增容技术研究与应用” （SGCC-MPLG003-2012）
